Wire clamp and hanger.



0. MUELLER.

WIRE CLAMP AND HANGER.

APPLICATION FILED JULY 16,.l9l5.

1,206,02 1. Patented Nov. 28, 1916.

vu J

null-1W 2 UNITED STATES PATENT OFFICE.

OTTO MUELLER, OF CHICAGO, ILLINOIS, ASSIGNOR F ON E-I-IALF T0 WILLIAMDAVID HAMER, OF INDIANAPOLIS, INDIANA.

WIRE CLAMP AND HANGER.

Application filed July 16, 1915.

To all whom it may concern Be it known that I, OTTO MUELLER, a 'citizenof the United States, residing at Chicago, in the county of Cook andState of Illinois, have invented certain. new and useful Improvements inWire Clamps and Hang ers, of which the following is a specification.

One of the objects of my invention is to provide a simple, cheap andeffective wire clamp and hanger for holding and support-- ing wires,such as trolley wires, and the like.

Another object of my invention is to provide a device whereby the wireis held firmly between the clamping jaws, with means for tightening thejaws at any time after the device has been erected. And still anotherobject, for convenience of construction, is the assemblage of the partsin a single entity to prevent disassociation of said parts and tocontribute to the ease and celerity of installation.

Other and further objects of my invention will become readily apparentto persons skilled in the art from a consideration of the followingdescription when taken in conjunction with the drawings, wherein Figure1 is a central transverse section of the clamp and hanger. Fig. 2 is aside elevation, partly in section. Fig. 3 is an inverted plan view ofthe device. Fig. 4 is a perspective detail of one of the clamps.

In all the views the same reference characters are employed to indicatesimilar parts.

In the selected illustrative embodiment of my invention an insulatinghanger 5 is provided with a base flange 6, having four arms 7, S, 9 and10, by any two of which the device may be secured to any suitablesupport by means of screws or bolts taking through the notches 11provided in each end of the respective arms. A petticoat, or metalshield 12, preferably an integral part with the base 6 contains a massof insulating material 13, such as rubber or the like, in which isembedded a bolt 14 provided with a head 15 and screw threaded at itslower end, as at 16. The lower end of the bolt, or stud 14, ispreferably squared, as at 17. The wire clamps, or jaws 18, arepreferably stamped in a single piece from sheet metal and formed up, asmore clearly shown in Fig. 4. Near the upper ends they are each providedwith attaching ears 19 and 20, perforated as at 21. There are two suchclamps, which are substantially duplicates of each Specification ofLetters Patent.

Patented Nov. 28, 1916.

Serial No. 40,186.

other, for each device, one to be contained on each side of a trolleywire 22. For a trolley wire, of the character shown in the drawing inwhich there is a longitudinally entendmg groove, one on each side of avertical plane, a bead 23 is formed on the inner surface of each oftheclamps to enterthe grooves in the wire, as shown in Fig. 1. The conicalportion 25 of the clamp carries the ears 19 and 20, is bent inwardly, asclearly shown in Fig. 1, when the two clamps are hinged together, and tothe bolt or stud 14, as by means of the rivet 26, they jointly form asubstantial cone. A nut 27 has threaded engagement with the stud 14 andis conically counter bored, as at 28, the counter.

bore being of substantially the same taper as the cone provided by theparts 2525 of the clamp members. The clamp members 18-18 are substantialduplicates and are hinged to the squared end 17 of the stud 14; one ofthe ears 19 or 20 of each of the clamps being adjacent the stud and theother overlying the ear of the-companion clamp so that the ears 19 and20, of each of the clamps, are the same distances apart. Thisfacilitates and cheapens the construction of the clamp.

The parts are assembled, as shown in Fig. 2, and are thus sent to thework ready for installation.

Inasmuch as the clamps 18-18 are not rotatively secured to the stud 14,or to the hanger 6, the device may be secured in place by bolts orscrews passing through the flanges 8 and 10, or it may be turned at anangle and the bolts or screws passed through the flanges 7 and 9,depending on the relative alinement of the trolley wires.

To apply the device, the nut 27 is screwed up on the stud 14 to aposition near the petticoat 12 when the clamps 18 18 may be ap plied tothe wire 22, after which the nut may be screwed down toward the clampsand until it engages the tapered portions 25 of the clamps wherebyfurther movement of the nut, in the same direction, will force theclamps toward each other, and into solid engagement with the wire. Inthe event that the clamps should become loosened, incident to the severeusage to which they are subjected, the nut 27 may be screwed downfarther upon the stud 14 and the clamps thereby tightened.

The clamping operation tends to hold the parts together, as the strainimposed upon them, by the operation of the nut '27 is to force themtogether and not to separate them. The nut 27 furthermore provides acanopy, or covering for the joints between the clamps and the lower endsof the stud 14, thereby protecting" these parts from the effect ofweather.

hile I have herein shown a single embodiment of my invention for thepurpose of clear disclosure it is manifest that I am not to be limitedto the specific showing as departure may be made therefrom, withoutdeparting from the spirit and scope of the appended claims.

Having described my invention, what I claim is:

A trolley wire clamp and hanger comprising an insulated threaded stud; apair of duplicate wire clamping jaws each having a flat body part with alongitudinal edge for engaging a trolley wire and a semi-conicalprojection on the opposite longitudinal edge with forked ends extendingfrom the upper edges of the semi-conical projection to overlie the studend for pivoted connection therewith; and a nut threaded on the studabove the jaws and provided with a taper counter-bore to engage the coneformed by the associated semi-conical projections on said jaws.

In testimony whereof I hereunto set my hand in the presence of twosubscribing witnesses.

OTTO MUELLER. In the presence of Foniin BAIN, MARY F. ALLEN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

